Reducing agent metering module with heat transfer coating

Pending Publication Date: 2022-01-06
ACTBLUE EUROPE SARL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0014]The invention thus applies specifically to metering modules comprising a first compartment in which the heating shell is situated, and a second compartment which does not have one. Specifically, a common design for these metering modules implements these two compartments within a body which comprises a fluidtight partition. This design is advantageous so far as speed, simplicity and cost of m

Problems solved by technology

Selective catalytic reduction post-treatment has become unavoidable for certain vehicles given t

Method used

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  • Reducing agent metering module with heat transfer coating
  • Reducing agent metering module with heat transfer coating
  • Reducing agent metering module with heat transfer coating

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second embodiment

[0041]FIGS. 5 and 6 relate to the metering module 1 according to the invention. In this second embodiment, the components that are common to the first embodiment are numbered using the same numbers.

[0042]In this second embodiment, the heating shell 12 is electrical and placed in the same compartment as the electronics 15.

[0043]FIG. 5 depicts the metering module 1 according to this second embodiment, viewed face-on and without its cover 5. Inside the compartment 7, in addition to the lateral wall 8, the fluidtight wall 9 and the pump 16, the module 1 comprises the heating shell 12.

[0044]The heating shell 12 has electrical heating means 23, such as a resistive electrical element, which, when the cover 5 is in place, are connected to the electronics 15.

[0045]In this second embodiment, because the heating shell 12 requires an electrical power supply, it has to be positioned on the side of the electronics 15 in order to be connected thereto, namely in this compartment 7. As stated previo...

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Abstract

A module for metering a reducing agent intended for a vehicle selective catalytic reduction post-treatment, this module including: a body in which the reducing agent circulates, this body including a first compartment and a second compartment which are separated by a fluidtight partition; and a heating shell partially surrounding the body in the first compartment. The body includes a heat transfer coating made from a thermoplastic elastomer material having a thermal conductivity of at least 3 Watts per meter Kelvin, this heat transfer coating including: a first portion positioned between the heating shell and the body; a second portion partially surrounding the body in the second compartment; and thermal bridges passing through the fluidtight partition and connecting the first portion to the second portion.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is the U.S. national phase of International Application No. PCT / EP2019 / 081318 filed Nov. 14, 2019 which designated the U.S. and claims priority to FR 1860550 filed Nov. 15, 2018, the entire contents of each of which are hereby incorporated by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]The invention concerns the field of automotive engineering and relates to a module for metering a reducing agent intended for a Selective Catalytic Reduction (SCR) post-treatment for a vehicle.Description of the Related Art[0003]Patent application US2008 / 0236147 describes a unit for distributing a reducing agent intended for selective catalytic reduction post-treatment for a vehicle. Such a unit, generally referred to as a “reducing agent injector” is mounted on a catalytic exhaust device in order to inject the reducing agent into same.[0004]Selective catalytic reduction post-treatment has become unavoidable for certain...

Claims

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Application Information

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IPC IPC(8): F01N3/20B01D53/94B29C70/68
CPCF01N3/2066B01D53/9431B29C70/68B29L2031/30F01N2610/10F01N2610/1406F01N2610/02F01N13/18Y02A50/20Y02T10/12
Inventor MERTES, PHILIPPE
Owner ACTBLUE EUROPE SARL
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